Hello Thorzdad2,

You could indeed try to add this to your userChrome.css file :

#PopupAutoCompleteRichResult {

  display: none!important;

}

https://www.userchrome.org/how-create-userchrome-css.html

'Hope that does what you want ......

Sorry for not responding sooner. I've been neck-deep in a project this week. I was just now able to apply your fix, and can confirm that it works wonderfully.

Many thanks, McCoy!

My pleasure - I'm glad it works for you  !

Well, the 68.0 update broke McCoy's fix. The gawdawful acid-green url-bar dropdown is back with a vengeance.

Why isn't there some simple/obvious way to disable this thing? Like a True/False setting in about:config? If it's in there, it certainly isn't easily discoverable. Or, a button in the Search section of the Preferences?

Sorry to hear that the problem is back ....

Would you try this please :

Type in the address bar about:config and press Enter (promise to be careful, if asked)

Type in the search bar and look for the preference :

browser.urlbar.maxRichResults and set its value to 0 (= zero)

Then close and restart Firefox.

Note that setting the preference to "0" effectively disables the Location Bar dropdown entirely.

If this is not what you want, chenge the value back to its default
(= 10).

In that case you could check some other preferences, when you type in the search bar browser.urlbar.

Thank you, McCoy! That worked. There's still a teeny, tiny sliver of the dropdown, but it's pretty unnoticeable.

Thorzdad said

Thank you, McCoy! That worked. There's still a teeny, tiny sliver of the dropdown, but it's pretty unnoticeable.

I'm glad that you can live with that "teeny, tiny sliver" .....

In Firefox 68 you can use this code in userChrome.css for the address bar drop-down list.

#urlbar-results { display:none!important; }

Thank you, cor-el. That worked perfectly.